Investigating the transverse momentum dependent gluon Sivers function in quarkonium production at $pp$ colliders
Abstract
In this contribution, we will present a short overview of the transverse momentum dependent (TMD) approach as a tool for studying the 3-dimensional structure of hadrons in high-energy (un)polarized hadron collisions. We will then summarize the present status of a running research programme that aims at constraining the poorly known transverse momentum dependent gluon Sivers function, through the study of single spin asymmetries in quarkonium (mainly ), pion, and -meson production in polarized proton-proton collisions at RHIC. Finally, we will shortly discuss perspectives for this field of research, emphasizing in particular its role in the physics programme of LHC in the fixed-target setup and NICA.
Keywords
Cite
@article{arxiv.2011.10350,
title = {Investigating the transverse momentum dependent gluon Sivers function in quarkonium production at $pp$ colliders},
author = {U. D'Alesio and F. Murgia and C. Pisano},
journal= {arXiv preprint arXiv:2011.10350},
year = {2021}
}
Comments
21 pages, 6 figures (10 plots); Invited contribution to the Few-Body Systems special issue "New Trends in Hadron Physics: a Few-Body Perspective"